[1] Univ Tampere, Dept Dermatol & Venereol, Fac Med & Biosci, Tampere, Finland
[2] Tampere Univ Hosp, Dept Dermatol & Allergol, Tampere, Finland
[3] Paijat Hame Social & Hlth Care Grp, Dept Dermatol & Allergol, Lahti, Finland
[4] Univ Tampere, Dept Pathol, Fac Med & Biosci, Tampere, Finland
[5] Univ Tampere, FIMLAB, Tampere, Finland
[6] Univ Helsinki, Helsinki Univ Cent Hosp, Unit Primary Hlth Care, Helsinki, Finland
[7] Univ Helsinki, Dept Gen Practice, Helsinki, Finland
[8] Kuopio Univ Hosp, Unit Primary Hlth Care, Helsinki, Finland
[9] Kuopio Univ Hosp, Unit Primary Hlth Care, Kuopio, Finland
[10] STUK Radiat & Nucl Safety Author, Helsinki, Finland
[11] Natl Inst Hlth & Welf, Dept Publ Hlth Solut, Helsinki, Finland